Radiator fob



PHILMORE IE. SPERY, OF CHICAGO, ILLINOIS.

RADIATOR FOR MOTOR-VEHICLES AND THE LIKE.

Specification of Letters Patent.

Application filed. May 24, 1918. Serial No. 236,329.

To aZZ whom it may concern:

Be it known that I, PrnLMonn F. Srnm' a citizen of the United States, anda resident of the city of Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Radiators for Motor-Vehicles and the like; and I do hereby declare that the following description of my said invention, takenin connection with the accompanying sheet of drawing, forms a full, clear, and exact specification, which will enable others skilled in the art to which it appertains to make and use the same.

My invention relates generally to improvements in radiators for motor vehicles and the like; and it consists, essentially, in

the novel and peculiar combination of parts and detalls of construction, as herelnafter first fully set forth and described and then pointed out in the claims. I

The object of my present invention is the production of an efficient and serviceable radiator for automobiles, motor trucks, traction engines, launches, aeroplanes and the like, in which internal combustion engines are employed, which engines are prevented from overheating by being surrounded by .a water jacket, the water of which circulates between the motor and said radiator, and while passing through the radiator, part-s with some of its heat by coming in contact with the metallic cooling surfaces of the radiator, the cooling element of these surfaces being currents of air passing through air ducts between water tubes and impinging upon the surfaces of said water tubes. In the construction of this radiator there are, therefore, a'multiplicity of vertical water tubes in parallel spaced relationship, "alternating with a similar n'iultiplicity of horizontal air passages; and

in these air passages there are located heat conductors which are in intimate contact with the metallic surfaces of the water tubes, and thereby assist the water tubes in abstracting heat from the water contained therein and passing therethrough to return to the motor at a materially reduced temperature. i

One of the main features of novelty. of my invention resides in the peculiar construction and formation of the walls of the waterutubes, and in the novel and peculiar construction of the heat conductor, as will hereinafter appear.

In the drawings forming a part of this Patented Sept. 9, 1919.

'rrnn STATES PATENT ()FFICE.

specification and illustrating the preferred embodiment of my invention, Figure 1 is a front elevatlon of a radiator of the nature described, no attempt being made in this fig ure to show specific details of construction. Fig. 2 is a transverse sectional view on line 22 of Fig. 1. Fig. 3 isan end elevation of a portion of a core-unit drawn on a practically full scale. Fig. 4: is a side elevation of a series of units assembled. Fig. 5 is a I sectional plan on line 55 of Fig. 3. Fig.

6 is a side elevation of two connected units of slightly modified form, drawn on a mag nified scale. Fig; 7 is a sectional elevation of a portion of a multiplicity of connected units, similar in construction to the device shown in Fig. 6. Fig. Sis a plan of a strip of metal from which the heat conductor is a perspective View of this strip in folded condition.

Like parts are designated by the same characters and symbols of reference in all the various figures.

A, in the drawings indicates the casing of an automobile radiator of a well-known de sign; and B, the radiator core therein. C is the upper, and D the lower water chamher in the casing; pipes 12, 13, connecting these chambers to an internal combustion motor in the well-known manner. The core B inth'is casing comprisesa large number of vertically-disposed, sections or units E,

placed end to end, thereby forming a multi formed. v F ig. 9 isanedge view; and Fig. 10 y the plates 14, 15, of which the water tubes F are formed, when provided with the V shaped or angularly disposed corrugations or crimps 17, perform their function of increasingthe cooling surface ofthe water tubes precisely the same as the curved or arcuate corrugations shown in Figs. 3 and 4, the corrugations forming between them crotches 18, the object of which will hereinafter appear. These corrugations are flattened at their ends, as at 19, and they merge into the shoulders, the object of flattening these corrugations being to enable their being formed in the sheet without straining or rupturing the metal. Then two of these plates are placed face to face, with the marginal edges or flanges 20 in cont-act, there is formed between these plates a vertical through-passage which constitutes the water passage, the length of which transversely, equals the distance between the shoulders 16 of theplates, and the width of which corresponds to the height of the shoulders, which width is rather a narrow one, but suflicient to permit water to pass freely through the water tubes.

The corrugations in the plates perform several functions, viz., to stiffen the plates,

then, to increase the cooling surface of theplates, and finally, to afford in the water tubes enlargements 21, whereby the speed of the water passing through the tubes is alternately increased and diminished or retarded, thus permitting sediment or foreign matter to lodge in the enlargements and thereby prevent clogging of the water tubes, whileat the same time, owing to this retardation, the water occupies'a longer time in passing through the tubes than would be the case were the tubes of even width throughout.

In order to increase the efficiency of this radiator, there are located in the air pa-s sages heat conductors H, which conductors are strips of metal of peculiar formation. These strips, as clearly shown in Fig. 8, comprise a narrow bar 22, from whichextend at regular,---predetermined, intervals tongues 23 separated by narrow, equal spacing portions 30. This strip is bent in zigzag form along the dotted lines 25, in Fig. 8, as illustrated in Figs. 9 and 10, so that all the tongues 23 extend horizontally and in parallel spaced relationship, while the bars 22 connect a pair of these tongues alternately at one margin thereof, and then the next pair of tongues at the other margin of said tongues.

These tongues, when thus arranged, form cross bars in the air passages which enga e the crotches 18 betwen the corrugations 1 and are in intimate contact therewith, so that when the core hasfinally been dipped into a bath of molten solder, it becomes to all intents and purposes a homogeneous structure. These cross bars serve the further function of strengthening the structure and prevent. disarrangement of the core members when the core is placed into a metallic frame and clamped therein preparatory to dipping the core into the solder bath.

This 'adiator, owing to the large number of water tubes and air spaces which can be mounted in a casing of a given size, is of superior efficiency, and especially well adapted for use in connection with the more powerful internal combustion engines.

The object of forming the cross bars in the manner described, 2'. c. by a series of connected tongues, is to facilitate the insertion of the cross bars into the air spaces, that is to say, an operator can insert a strip of these heat conductors, (which are preferably made of a length when formed, equal to the height of the core) almost as rapidly as he could insert one or two cross bars were these cross bars separately formed pieces.

I have hereinbefore described the pre ferred embodiment of my invention, but I desire it to be understood that I am aware that changes may be made in the details of construction, and parts omitted, without departing from the scope of my invention as defined in the subjoined claims.

Having thus fully described this invention, I claim as new and desire to secure to myself by Letters Patent of the United States- 1. In a radiator of the nature described, a core, said core comprising a multiplicity of spaced apart, vertically disposed water tubes, and a like multiplicity of air passages therebetween, the water tubes having connected corrugations forming between them a series of crotches, and a heat conductor in each air passage, said heat conductor consisting of a narrow bar, said bar having laterally-extending tongues separated by narrow, equally-spaced portions, said bar being folded so that all the tongues are in parallel spaced relationship, said tongues engaging the crotches in the walls of the water tubes.

' 2. In a radiator of the nature described having vertically disposed water tubes and horizontally disposed air duets intervening the water tubes, a heat conductor for said air ducts, said heat conductor being a narrow strip of metal, said strip having at one of its longitudinal margins a series of laterally projecting tongues separated by equally-spaced portions, said strip being folded back and forth so that all the tongues are in parallel spaced relationship and equally spaced apart by said spacing portions.

' In testimony that I claim the foregoing as my invention, I have hereunto set my series at this patent may be attained for are cents each, by addressingthe "Gemmiseiener cf resents. Washington, D. 63. 

